What are the potential unsafe acts that can occur on construction sites?

The potential unsafe acts that can occur on construction sites encompass a range of practices that compromise safety. The correct answer highlights several critical unsafe acts: using defective tools, ignoring warning signs, not using personal protective equipment (PPE), and working near energized circuits.

Using defective tools is a significant safety concern because tools that are malfunctioning or damaged can fail during use, leading to accidents or injuries. Ignoring warning signs is another critical issue, as these signs are placed to alert workers to potential hazards, ensuring they can take necessary precautions. Not using personal protective equipment is linked directly to worker safety, as PPE acts as a defense against various physical hazards, from falling objects to chemical exposure. Lastly, working near energized circuits involves inherent risks of electrical shock or electrocution, making it imperative for workers to follow safety protocols to prevent accidents.

Each of these unsafe acts can lead to serious injuries or fatalities, making it essential to recognize and address them collectively, rather than in isolation. This comprehensive understanding of unsafe acts helps cultivate a safer work environment on construction sites.